APA (7th ed.) Citation

Keats, J., & Houghton, R. M. M. (1931). Life and letters of John Keats. Oxford University Press.

Chicago Style (17th ed.) Citation

Keats, John, and Richard Monckton Milnes Houghton. Life and Letters of John Keats. London: Oxford University Press, 1931.

MLA (9th ed.) Citation

Keats, John, and Richard Monckton Milnes Houghton. Life and Letters of John Keats. Oxford University Press, 1931.